參數(shù)資料
型號: MC9S08QE4CPG
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP16
封裝: ROHS COMPLIANT, PLASTIC, DIP-16
文件頁數(shù): 46/46頁
文件大?。?/td> 1293K
代理商: MC9S08QE4CPG
Electrical Characteristics
MC9S08QE8 Series Data Sheet, Rev. 7
Freescale Semiconductor
9
The average chip-junction temperature (TJ) in °C can be obtained from:
TJ = TA + (PD × θJA)
Eqn. 1
where:
TA = Ambient temperature, °C
θJA = Package thermal resistance, junction-to-ambient, °C/W
PD = Pint + PI/O
Pint = IDD × VDD, Watts — chip internal power
PI/O = Power dissipation on input and output pins — user determined
For most applications, PI/O << Pint and can be neglected. An approximate relationship between PD and TJ
(if PI/O is neglected) is:
PD = K ÷ (TJ + 273 °C)
Eqn. 2
Solving Equation 1 and Equation 2 for K gives:
K = PD × (TA + 273 °C) + θJA × (PD)
2
Eqn. 3
where K is a constant pertaining to the particular part. K can be determined from equation 3 by measuring
PD (at equilibrium) for a known TA. Using this value of K, the values of PD and TJ can be obtained by
solving Equation 1 and Equation 2 iteratively for any value of TA.
Table 4. Thermal Characteristics
Rating
Symbol
Value
Unit
Operating temperature range
(packaged)
TA
TL to TH
–40 to 85
°C
Maximum junction temperature
TJM
95
°C
Thermal resistance
Single-layer board
32-pin LQFP
θ
JA
66
°C/W
28-pin SOIC
57
20-pin SOIC
71
16-pin PDIP
64
16-pin TSSOP
108
Thermal resistance
Four-layer board
32-pin LQFP
θ
JA
47
°C/W
28-pin SOIC
42
20-pin SOIC
52
16-pin PDIP
47
16-pin TSSOP
78
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MC9S08QE4CTGR 功能描述:8位微控制器 -MCU 4K Flash, 256 Ram RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC9S08QE4CWJ 功能描述:8位微控制器 -MCU 4KB FLASH; 512 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC9S08QE4CWL 功能描述:8位微控制器 -MCU 4KB FLASH; 512 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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